Update README.md

Author: AAulicino

README.md

@@ -147,4 +147,6 @@ Runner.MoveNextAndExpect(new WaitForSeconds(1));
 
 Other samples can be found in the [Samples](https://github.com/AAulicino/Unity-Coroutines-for-NSubstitute/tree/main/Tests/Editor/Samples) folder.
 
-While the documentation is not complete, you can also have a look at the [SystemTests](https://github.com/AAulicino/Unity-Coroutines-for-NSubstitute/tree/main/Tests/Editor/SystemTests) folder as the tests found in there represent some real uses cases.
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+You can also have a look at the [SystemTests](https://github.com/AAulicino/Unity-Coroutines-for-NSubstitute/tree/main/Tests/Editor/SystemTests) folder as the tests found in there represent some real uses cases.